Viking Heritage February 09, 2018 1973 1974 1978 aerogramme europa Isle of Man maxicard ofdc Viking +
Mohenjo-daro January 21, 2016 1973 1976 2002 2014 aerogramme Japan joint issue ofdc Pakistan unesco +
Silk Road February 06, 2013 1973 1994 2012 cachet China Great Britain metal mini sheet pex postcard +
Archaeological Discoveries February 06, 2011 1972 1973 1974 1975 antler bronze Bronze Age ceramic gold ofdc semi postal slogan cancel Switzerland +